Expeditionary Troops–LtGen H. M. Smith, USMC
Headquarters and Service Battalion, Vth Amphibious Corps (less detachments)
Medical Battalion, Vth Amphibious Corps
Motor Transport Battalion. Vth Amphibious Corps
Provisional Signal Group, Vth Amphibious Corps
Landing Force Headquarters Signal Section
Signal Battalion, Vth Amphibious Corps (less detachments)
Detachment, Signal Company, 8th Field Depot
Detachment, 1st Separate Reconnaissance and Intelligence Platoon
Detachment, Signal Headquarters Company, VII Fighter Command (USA)
Detachment, 568th Signal Air Warning Battalion (USA)
Detachment, 726th Signal Air Warning Battalion (USA)
Detachment, 49th Signal Construction Battalion (USA)
Detachment 44, 70th Army Airways Communications System (USA)
Detachment, Communications Unit 434
Landing Force Air Support Control Unit
Headquarters, Provisional LVT Group
2nd Separate Engineer Battalion
62nd Naval Construction Battalion (less detachments)
23rd Naval Construction battalion (Cos A and B)
8th Field Depot (less detachments plus VAC Shore Party Headquarters)
Corps Evacuation Hospital No. 1
2nd Bomb Disposal Company, plus 156th Bomb Disposal Squad (USA)
Company B, Amphibious Reconnaissance Battalion (FMFPac)
38th Field Hospital (Reinforced) (USA)
Medical Sections, Civil Affairs
Joint Intelligence Center Pacific Oceans Area Intelligence Team
Joint Intelligence Center Pacific Oceans Area Enemy Materiel and Salvage Platoon
VAC Artillery
1st Provisional Field Artillery Group
Headquarters Battery
2nd 155mm Howitzer Battalion
4th 155mm Howitzer Battalion
473rd Amphibian Truck Company (USA)
VAC Antiaircraft Artillery
138th AAA Group (less detachments) (USA)
Headquarters Battery, 138th AAA Group (USA)
506th AA Gun Battalion (USA)
483rd AA Automatic Weapons Battalion (USA)
4th Marine Division(Reinforced)
4th Marine Division–MajGen Clifton Cates, USMC
Companies A and B, plus Detachment, Battalion Headquarters, 2nd Armored
Amphibian Battalion
5th Amphibian Tractor Battalion
10th Amphibian Tractor Battalion
1st Joint Assault Signal Company
Marine Observation Squadron 4
133rd Naval Construction Battalion
4th Marine Amphibian Truck Battalion
476th Amphibian Truck Company (USA)
7th War Dog Platoon
1st Provisional Rocket Detachment
Detachment, 8th Field Depot
Detachment, 726th Signal Air Warning Company (USA)
Detachment, Signal Battalion, VAC
442nd Port Company (USA)
Joint Intelligence Center Pacific Oceans Area Intelligence Team
24th Replacement Draft
30th Replacement Draft
5th Marine Division (Reinforced)
5th Marine Division–MajGen Keller Rockey, USMC
5th Marine Amphibian Truck Company
5th Joint Assault Signal Company
471st Amphibian Truck Company (USA)
11th Amphibian Tractor Battalion
3rd Amphibian Tractor Battalion
Companies C and D and Detachment, Battalions Headquarters, 2nd Armored
Amphibian Battalion
Marine Observation Squadron 5
3rd Provisional Rocket Detachment
6th Marine War Dog Platoon
592nd Port Company (USA)
31st Naval Construction Battalion
27th Replacement Draft
31st Replacement Draft
Deatchment, 726th Signal Air Warning Company (USA)
Joint Intelligence Center
Pacific Ocean Area Intelligence Team
Detachment, Signal Battalion, VAC
Detachment, 8th Field Depot
Liaison Group, VAC
Liaison Group, FMFPac
3rd Marine Division (Reinforced)
3rd Marine Division–MajGen Graves Erskine, USMC
3rd Joint Assault Signal Company
Marine Observation Squadron 1
3rd Marine War Dog Platoon
Joint Intelligence Center Pacific Oceans Area Intelligence Team
Detachment, Signal Battalion, VAC
28th Replacement
Draft
34th Replacement Draft
source: Iwo Jima–Amphibious Epic
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